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| author | Paul Cercueil <paul@crapouillou.net> | 2022-01-31 19:27:40 +0300 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2022-02-28 04:03:17 +0300 |
| commit | 07320c91565658e117f2f86a190eec9bb64abeb6 (patch) | |
| tree | a749d22d51267b70713a2167a660512f01d0c830 /drivers/hwmon/hwmon.c | |
| parent | 9f93aa1005fa1b960f10e0ee3ed8c4e697526053 (diff) | |
| download | linux-07320c91565658e117f2f86a190eec9bb64abeb6.tar.xz | |
hwmon: Fix possible NULL pointer
The recent addition of the label attribute added some code that read the
"label" device property, without checking first that "dev" was non-NULL.
Fix this issue by first checking that "dev" is non-NULL.
Fixes: ccd98cba6a18 ("hwmon: Add "label" attribute")
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/hwmon.c')
| -rw-r--r-- | drivers/hwmon/hwmon.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c index 6c3a8c65390d..0d6c6809f26c 100644 --- a/drivers/hwmon/hwmon.c +++ b/drivers/hwmon/hwmon.c @@ -809,7 +809,7 @@ __hwmon_device_register(struct device *dev, const char *name, void *drvdata, hdev->groups = groups; } - if (device_property_present(dev, "label")) { + if (dev && device_property_present(dev, "label")) { err = device_property_read_string(dev, "label", &label); if (err < 0) goto free_hwmon; |